| Full text | |
| Author(s): |
Silva, Alisson H. M. da
;
Vieira, Luiz H.
;
Santanta, Cassia S.
;
Koper, Marc T. M.
;
Assaf, Elisabete M.
;
Assaf, Jose M.
;
Gomes, Janaina F.
Total Authors: 7
|
| Document type: | Journal article |
| Source: | APPLIED CATALYSIS B-ENVIRONMENTAL; v. 324, p. 11-pg., 2023-05-05. |
| Abstract | |
The catalytic conversion of CO2 can reduce its impact in the atmosphere and produce chemicals of industrial interest. Based on this, herein, ethanol formation from CO2 hydrogenation with water was studied. Inspired by CO2 electroreduction results, we show that ethanol can be formed at atmospheric pressure, using metallic Cu catalysts in the CO2 hydrogenation with water steam (CO2 + H-2 + H2O) with selectivity of 84% and productivity of similar to 2 mu mol.gcat(-1) .h(-1) at 190 degrees C. When only H2O is used (without H-2), the same trend was observed. To the best of our knowledge, ethanol is reported for the first time to be synthesized at atmospheric pressure, using only CO2 and water as reactants in a thermocatalytic process. H-1 NMR results showed that water (and deuterated water) hydrogenate CO2 to form ethanol. CO-DRIFTS analyses revealed that water enhances the carbon-metal strengthening and this can explain why ethanol production is favored during the CO2 hydrogenation. (AU) | |
| FAPESP's process: | 18/23601-3 - Multi-approaches strategies for converting CO2 to platform molecules and value-added chemicals: catalysis and electrocatalysis investigations |
| Grantee: | Janaina Fernandes Gomes |
| Support Opportunities: | Scholarships in Brazil - BIOEN - Young Researchers |
| FAPESP's process: | 17/05241-7 - Synthesis of C2+OH alcohols from CO2 hydrogenation in polyfunctional catalysts based on Cu, Rh and Fe |
| Grantee: | Cássia Sidney Santana |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 18/24339-0 - Synthesis of higher alcohols by the conversion of CO2 via electrocatalysis |
| Grantee: | Cássia Sidney Santana |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 17/08420-0 - Multi-approaches strategies for converting CO2 to platform molecules and value-added chemicals: catalysis and electrocatalysis investigations |
| Grantee: | Janaina Fernandes Gomes |
| Support Opportunities: | Program for Research on Bioenergy (BIOEN) - Young Investigators Grants |
| FAPESP's process: | 18/12021-6 - Partial oxidation of methane to methanol catalyzed by single-atom noble metal (Rh, Pd or Pt) supported on doped mesoporous CeO2 (Ce1-xMxO2, M = Zr, Sn or La) |
| Grantee: | Luiz Henrique Vieira |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery |
| Grantee: | Marcelo Zaiat |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/15230-5 - Research Centre for Greenhouse Gas Innovation - RCG2I |
| Grantee: | Julio Romano Meneghini |
| Support Opportunities: | Research Grants - Research Centers in Engineering Program |